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Figure 5 Rotational venous angiogram, with still frames in anteroposterior (A) and left anterior oblique 30° (B). PV = posterior vein; MV = middle cardiac vein; GV = great cardiac vein; AV, anterior cardiac vein. Alongside are three-dimensional reconstructed images of the coronary venous tree, facilitating segmental visualization of the coronary venous anatomy. The coronary venous ring is divisible into three segments: posterior (C), lateral (B), and anterior (A), in both views. (B) The mid-ventricular position of a lateral segmental branch (1), closely corresponding to the second-order lateral tributary from an anterior segmental branch, extending over the mid-ventricular region (2).
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